Char: riscom8, eliminate busy loop
riscom8, eliminate busy loop Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
3e98cee717
commit
c4ebd92777
@ -213,14 +213,6 @@ static inline void rc_release_io_range(struct riscom_board * const bp)
|
||||
release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
|
||||
}
|
||||
|
||||
/* Must be called with enabled interrupts */
|
||||
static inline void rc_long_delay(unsigned long delay)
|
||||
{
|
||||
unsigned long i;
|
||||
|
||||
for (i = jiffies + delay; time_after(i,jiffies); ) ;
|
||||
}
|
||||
|
||||
/* Reset and setup CD180 chip */
|
||||
static void __init rc_init_CD180(struct riscom_board const * bp)
|
||||
{
|
||||
@ -231,7 +223,7 @@ static void __init rc_init_CD180(struct riscom_board const * bp)
|
||||
rc_wait_CCR(bp); /* Wait for CCR ready */
|
||||
rc_out(bp, CD180_CCR, CCR_HARDRESET); /* Reset CD180 chip */
|
||||
sti();
|
||||
rc_long_delay(HZ/20); /* Delay 0.05 sec */
|
||||
msleep(50); /* Delay 0.05 sec */
|
||||
cli();
|
||||
rc_out(bp, CD180_GIVR, RC_ID); /* Set ID for this chip */
|
||||
rc_out(bp, CD180_GICR, 0); /* Clear all bits */
|
||||
@ -280,7 +272,7 @@ static int __init rc_probe(struct riscom_board *bp)
|
||||
rc_wait_CCR(bp);
|
||||
rc_out(bp, CD180_CCR, CCR_TXEN); /* Enable transmitter */
|
||||
rc_out(bp, CD180_IER, IER_TXRDY); /* Enable tx empty intr */
|
||||
rc_long_delay(HZ/20);
|
||||
msleep(50);
|
||||
irqs = probe_irq_off(irqs);
|
||||
val1 = rc_in(bp, RC_BSR); /* Get Board Status reg */
|
||||
val2 = rc_in(bp, RC_ACK_TINT); /* ACK interrupt */
|
||||
|
Loading…
Reference in New Issue
Block a user